I have the top and bottom of my belly button pierced. Got those done when I was about 14 and it didn't hurt one bit, imo. Happens really fast. Got those done professionally of course. I also pierced my nose myself around the same age, which I took out after a couple years. That hurt like a b****. I don't even count ear piercings. Those are so common, 2 year olds are getting it done (with girls of course). Though I do have 2 in each ear.

I only have my ears pierced, one on each ear. I hear getting your belly button pierced is like pure pain for 10 seconds. I don't really want any other piercings. Maybe a second hole for my ears, but I've read that cartilage piercings increase your chances for some diseases. That's not just if it gets infected...